Energy storage system, control method thereof, cleaning device and battery management system

Abstract

The embodiment of the invention provides an energy storage system and a control method thereof, a cleaning device and a battery management system, the energy storage system comprises a heat dissipation device, the cleaning device and the battery management system, the heat dissipation device comprises a heat dissipation air duct and a fan, and the cleaning device comprises an acquisition module, a heating module and a deicing module; the acquisition module is used for acquiring corresponding air pressure data, temperature data and humidity data of the heat dissipation air duct; and under the condition that the air pressure data indicates that the air outlet of the heat dissipation air duct is not smooth, according to the numerical range of the temperature data and the humidity data, the fan is controlled to execute dust removal operation, or the heating module is controlled to execute heating operation, and under the condition that the working duration of the heating module exceeds a first duration, the deicing module is controlled to execute deicing operation. The cleaning efficiency can be improved when air outlet at the heat dissipation air duct is not smooth, normal work of the heat dissipation device is guaranteed, and safe and stable operation of the energy storage system is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage systems, and in particular to energy storage systems and control methods thereof, cleaning devices, and battery management systems. Background Art

[0002] With the widespread adoption of renewable energy and the growing demand for energy management, energy storage systems have become a crucial component of modern power systems. By storing electrical energy and providing it during peak demand, energy storage systems balance power supply and demand, improving system stability and reliability.

[0003] Currently, dust, snow, and ice may accumulate in the heat dissipation ducts of energy storage systems. However, the cleaning efficiency is low, making it difficult for the energy storage system to operate smoothly. Summary of the Invention

[0004] The purpose of this application is to provide an energy storage system and its control method, cleaning device and battery management system, so as to improve the cleaning efficiency when the air outlet of the heat dissipation duct of the energy storage system is blocked, thereby ensuring the smooth operation of the energy storage system.

[0005] The purpose of this application is achieved by the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides an energy storage system, which includes a heat dissipation device, a cleaning device and a battery management system, wherein the heat dissipation device includes a heat dissipation duct and a fan, and the cleaning device includes an acquisition module, a heating module and a de-icing module, and the fan, the heating module and the de-icing module are arranged near the duct opening of the heat dissipation duct; the acquisition module is used to acquire corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct; when the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to perform the following processing: when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, the fan is controlled to perform a dust removal operation; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, the heating module is controlled to perform a heating operation; if the working time of the heating module exceeds the first time length, the de-icing module is controlled to perform a de-icing operation.

[0007] In some embodiments, the battery management system controls the fan to perform dust removal operations in the following manner: controlling the fan speed to be greater than a preset speed to blow away dust from the air duct opening until the heat dissipation air duct is unobstructed.

[0008] In some embodiments, the heating module includes at least one heating tube, which is arranged on a dust-proof component near the air duct opening; the battery management system controls the heating module to perform a heating operation in the following manner: controlling at least part of the heating tube to work so that the heat generated by the heating tube melts the snow at the air duct opening.

[0009] In some embodiments, the de-icing module includes a driver, and the heat dissipation device also includes at least one baffle near the air duct opening; the battery management system controls the de-icing module to perform the de-icing operation in the following manner: a de-icing instruction is sent to the driver, and the driver drives at least part of the baffle to move after receiving the de-icing instruction to clear the ice on the corresponding baffle until the heat dissipation air duct is unobstructed.

[0010] In some embodiments, the shielding plate is a louver, and a plurality of louvers are evenly arranged at the air duct opening, and the rotation axis of the louver is parallel to the plane where the air duct opening is located.

[0011] In some embodiments, the shielding plate adopts an opening and closing cover plate, the rotation axes of the two opening and closing cover plates are respectively close to the opposite sides of the air duct opening, and the rotation axes of the opening and closing cover plates are parallel to the plane where the air duct opening is located.

[0012] In some embodiments, the de-icing module further includes a guide rail and a push rod near the air duct opening, and the driver is further used to drive the push rod to move along the guide rail after receiving the de-icing instruction to clear ice on the plane where the air duct opening is located.

[0013] In a second aspect, an embodiment of the present application provides a control method for an energy storage system, wherein the energy storage system includes a heat dissipation device and a cleaning device, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes an acquisition module, a heating module and a de-icing module, and the fan, the heating module and the de-icing module are arranged near the duct opening of the heat dissipation duct; the method includes: obtaining wind pressure data, temperature data and humidity data corresponding to the heat dissipation duct through the acquisition module; when the wind pressure data indicates that the heat dissipation duct is not smooth in air outlet: when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, controlling the fan to perform a dust removal operation; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, controlling the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, controlling the de-icing module to perform a de-icing operation.

[0014] In a third aspect, an embodiment of the present application provides a cleaning device, which is applied to an energy storage system, wherein the energy storage system includes a heat dissipation device, a cleaning device and a battery management system, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a de-icing module, and the fan, the heating module and the de-icing module are arranged near the duct opening of the heat dissipation duct; the collection module is used to obtain the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct through the collection module; when the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to control the fan to perform a dust removal operation when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, control the de-icing module to perform a de-icing operation.

[0015] In a fourth aspect, an embodiment of the present application provides a battery management system, which is applied to an energy storage system, wherein the energy storage system includes a heat dissipation device, a cleaning device and a battery management system, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a de-icing module, and the fan, the heating module and the de-icing module are arranged near the duct opening of the heat dissipation duct; the collection module is used to obtain the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct through the collection module; when the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to control the fan to perform a dust removal operation when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, control the de-icing module to perform a de-icing operation.

[0016] An embodiment of the present application provides an energy storage system and a control method thereof, a cleaning device and a battery management system. The energy storage system includes a heat dissipation device, a cleaning device and a battery management system. The heat dissipation device includes a heat dissipation duct and a fan. The cleaning device includes an acquisition module, a heating module and a de-icing module. The fan, heating module and de-icing module are arranged near the duct opening of the heat dissipation duct; the acquisition module is used to acquire wind pressure data, temperature data and humidity data corresponding to the heat dissipation duct; when the wind pressure data indicates that the heat dissipation duct is not smooth in air outlet, the battery management system is used to perform the following processing: when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, the fan is controlled to perform a dust removal operation; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, the heating module is controlled to perform a heating operation; if the working time of the heating module exceeds the first time length, the de-icing module is controlled to perform a de-icing operation. The acquisition module collects wind pressure data, temperature data, and humidity data at the heat dissipation duct. First, it determines whether the heat dissipation duct is unobstructed based on the wind pressure data. If the heat dissipation duct is not unobstructed, it then takes corresponding measures based on the numerical range of the temperature data and humidity data and the working time of the heating module, and uses at least one of the fan, heating module, and de-icing module to perform corresponding cleaning operations (for example, dust removal, snow removal, and ice removal). In this way, the cleaning efficiency when the heat dissipation duct is not unobstructed can be improved, the normal operation of the heat dissipation device can be guaranteed, the problem of incomplete heat exchange inside and outside the energy storage system causing the temperature of the energy storage battery system to rise can be improved, the risk of system charge and discharge power derating can be reduced, the efficiency of the energy storage system can be greatly improved, and the safe and stable operation of the energy storage system can be ensured. In addition, through the cooperation of the cleaning device and the battery management system, intelligent and precise operation can be achieved throughout the process. The automated working condition identification and disposal method greatly reduces the investment in manual maintenance and provides reliable technical support for reducing operation and maintenance costs in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a structural block diagram of an energy storage system provided in an embodiment of the present application.

[0019] Figure 2 This is a structural block diagram of a heat dissipation device provided in an embodiment of the present application.

[0020] Figure 3 This is a structural block diagram of a cleaning device provided in an embodiment of the present application.

[0021] Figure 4 This is a control flow chart of an energy storage system provided in an embodiment of the present application.

[0022] Figure 5This is a dust removal schematic diagram of an energy storage system provided in an embodiment of the present application.

[0023] Figure 6a This is a schematic diagram of snow removal of an energy storage system provided in an embodiment of the present application.

[0024] Figure 6b This is a schematic diagram of snow removal of another energy storage system provided in an embodiment of the present application.

[0025] Figure 7a This is a schematic diagram of deicing of an energy storage system provided in an embodiment of the present application.

[0026] Figure 7b This is a schematic diagram of deicing of another energy storage system provided in an embodiment of the present application.

[0027] Figure 8 This is a flow chart of a control method for an energy storage system provided in an embodiment of the present application.

[0028] Figure 9 This is a structural block diagram of a battery management system provided in an embodiment of the present application.

[0029] Figure 10 This is a structural block diagram of a controller provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0031] In the description of the embodiments of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] On snowy days, when the energy storage system is not in operation for an extended period, thick snow, icing, and dust can block the external cooling ducts of the energy storage system's heat dissipation devices. This blocked airflow leads to incomplete heat exchange between the internal and external heat sources, causing the energy storage battery system to heat up and derating the system's charge and discharge power. Currently, when dust, snow, or ice accumulate in the cooling ducts of energy storage systems, manual cleaning (e.g., snow removal, ice removal, and dust removal) or passive removal using heat from the cooling ducts is often used. However, this cleaning efficiency is low, making it difficult to ensure the smooth operation of the energy storage system.

[0033] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , Figure 1 This is a structural block diagram of an energy storage system provided in an embodiment of the present application. Figure 2 This is a structural block diagram of a heat dissipation device provided in an embodiment of the present application. Figure 3 This is a structural block diagram of a cleaning device provided in an embodiment of the present application. Figure 4 This is a control flow chart of an energy storage system provided in an embodiment of the present application.

[0034] When the air flow in the heat dissipation duct of the energy storage system is blocked, the cleaning efficiency is low, which makes it difficult for the energy storage system to operate smoothly. Figure 1 As shown, the embodiment of the present application provides an energy storage system, which includes a battery management system, a heat dissipation device and a cleaning device, wherein the heat dissipation device includes a heat dissipation duct and a fan (such as Figure 2 As shown), the cleaning device includes a collection module, a heating module and a de-icing module (as shown Figure 3 As shown), the fan, the heating module and the deicing module are arranged near the air duct opening of the heat dissipation duct.

[0035] like Figure 4 As shown, the acquisition module is used to acquire wind pressure data, temperature data, and humidity data corresponding to the heat dissipation duct. If the wind pressure data indicates that the heat dissipation duct is not flowing smoothly, the battery management system is used to perform the following processing: if the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, control the fan to perform a dust removal operation; or if the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the operating time of the heating module exceeds the first time, control the de-icing module to perform a de-icing operation.

[0036] The above embodiment does not limit the execution entity for determining whether the heat dissipation air duct is unobstructed based on the wind pressure data. For example, it can be an acquisition module or a battery management system, or both of them can perform part of the data processing operation to determine whether the air outlet is unobstructed.

[0037] In some embodiments, the acquisition module can be integrated into the battery management system (BMS). Alternatively, the acquisition component can be set separately, and the above embodiment is not limited to this. The acquisition component can collect wind pressure data, temperature data and humidity data corresponding to the heat dissipation duct. In order to collect these data, the acquisition component can, for example, include a temperature sensor, a humidity sensor and a wind pressure sensor installed at the air duct opening of the heat dissipation duct. The temperature sensor is used to collect temperature data, the humidity sensor is used to collect humidity data, and the wind pressure sensor is used to collect wind pressure data. The probe of each sensor can be set, for example, close to the air duct opening.

[0038] In some embodiments, the operating condition type can be determined based on the collected data, and then the corresponding treatment of each operating condition type can be performed. The operating condition type can include, for example, one or more of dust accumulation, snow accumulation, and ice formation. As an example, when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, the operating condition type is determined to be dust accumulation. As another example, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, the operating condition type is determined to be snow accumulation; in the snow accumulation mode, the heating module will be controlled to work, and subsequently, if the working time of the heating module exceeds the first time length, the operating condition type will be adjusted to ice formation. In the above embodiments, the execution subject for determining the operating condition type can be the acquisition module or the battery management system, or the two can respectively perform part of the data processing operations for determining the operating condition type.

[0039] For example, in a specific application scenario, the acquisition module can determine whether the air outlet of the heat dissipation duct is unobstructed based on the wind pressure data. If it is unobstructed, the operating condition type of the heat dissipation device is determined to be normal and provided to the battery management system, without the battery management system issuing work instructions to the heating component and the de-icing component. If the air outlet is not unobstructed, the acquisition module will further accurately identify the operating condition type at the outlet of the duct based on the temperature data and humidity data, classify it as dust accumulation or snow accumulation, and provide the determined operating condition type to the battery management system, which will control the relevant hardware to perform dust removal, heating and other operations based on the operating condition type. As the working time of the heating module gradually increases, if it exceeds the first time, the acquisition module will adjust the operating condition type to icing, and provide the updated operating condition type of icing to the battery management system, which will control the relevant hardware to perform de-icing operations.

[0040] As can be seen from the above, when the heat dissipation air duct is blocked, the battery management system can control the relevant hardware to perform corresponding processing according to relevant data (for example, temperature data, humidity data, working time of the heating module) or the received working condition type, and when the temperature data is within the first temperature value range and the humidity data is within the first humidity value range, the fan can be controlled to perform dust removal operation; when the temperature data is within the second temperature value range and the humidity data is within the second humidity value range, the heating module can be controlled to perform heating operation, and when the working time of the heating module exceeds the first time length, in addition to controlling the heating module to continue to perform the heating operation, the de-icing module can be controlled to perform the de-icing operation.

[0041] The above embodiment does not limit the positions of the heat dissipation duct and the fan in the energy storage system. As an example, the heat dissipation duct and the fan can be arranged on the top or side of the energy storage system.

[0042] In the above embodiment, the acquisition module collects wind pressure data, temperature data, and humidity data from the cooling duct. First, based on the wind pressure data, it determines whether the cooling duct is unobstructed. If the airflow is unobstructed, there is no need to clean the cooling duct, and the battery management system does not need to issue a work instruction. If the cooling duct is not unobstructed, the temperature and humidity data are combined to determine the appropriate treatment, using the fan and heating module to perform the corresponding cleaning operation. If the heating module's operating time exceeds a first duration, the deicing module is used to perform the deicing operation. This improves the cleaning efficiency of the cooling duct when the airflow is obstructed, ensures the normal operation of the heat dissipation device, and improves the problem of incomplete heat exchange between the internal and external parts of the energy storage system, which causes the temperature of the energy storage battery system to rise. This reduces the risk of system charge and discharge power derating, greatly improves the efficiency of the energy storage system, and ensures the safe and stable operation of the energy storage system. In addition, through the cooperation of the cleaning device and the battery management system, intelligent and precise operation is achieved throughout the process. Automated operating condition identification and treatment methods greatly reduce manual maintenance investment, providing reliable technical support for reducing operation and maintenance costs in the future.

[0043] To power the heating module and the de-icing module, in some embodiments, the energy storage system may further include an energy storage battery system, which is used to provide electrical energy to the heating module and the de-icing module. The energy storage battery system may, for example, be a battery compartment, which may contain one or more battery clusters, each of which may include one or more battery packs, and each of which may include one or more battery cells. Thus, the electrical energy required by the heating module and the de-icing module can be obtained from the energy storage battery system, eliminating the need for an external power supply, reducing hardware modification costs, and significantly improving the reliability and stability of the cleaning operation, thereby ensuring the smooth operation of the energy storage system.

[0044] The above embodiment does not limit the method for determining whether the heat dissipation duct is unobstructed. In some embodiments, the acquisition module may determine whether the heat dissipation duct is unobstructed by: if the wind pressure data is within a preset wind pressure value range, the heat dissipation duct is determined to be unobstructed; or if the wind pressure data is not within the preset wind pressure value range, the heat dissipation duct is determined to be unobstructed. The preset wind pressure value range can be selected or set according to actual needs and is not limited in the above embodiment.

[0045] The above embodiment does not limit the first duration, which can be selected or set according to actual needs. As an example, the first duration can be set by the battery management system.

[0046] It should be noted that the dust removal, heating, and de-icing operations described above require that the wind pressure data continuously indicates that the cooling duct is blocked. The corresponding cleaning operations will only be performed if the cooling duct is blocked. Once the cooling duct is unobstructed, the above cleaning operations are no longer necessary.

[0047] To achieve rapid dust removal, in some embodiments, the battery management system can control the fan to perform dust removal in the following manner: controlling the fan speed to be greater than a preset speed to blow away dust from the air duct opening until the heat dissipation duct is unobstructed. The above embodiment does not limit the preset speed, which can be selected or set according to actual needs. In this way, the fan can operate at a higher speed, facilitating rapid removal of dust from the air duct opening until the air flow is unobstructed.

[0048] See also Figure 5 , Figure 5 This is a dust removal schematic diagram of an energy storage system provided in an embodiment of the present application.

[0049] For example, Figure 5 As shown, in a specific application scenario, it is assumed that dust accumulates in the heat dissipation duct of the heat dissipation device of the energy storage system. After the heat dissipation device is started, the wind pressure data collected by the acquisition module indicates that the air outlet of the heat dissipation duct is not smooth. Then, the temperature data and humidity data are combined and compared with the set temperature and humidity value range. If the temperature data is within the first temperature value range and the humidity data is within the first humidity value range, the battery management system sends a control instruction to the fan to increase the fan speed and increase the air pressure at the air outlet to blow away the dust until the wind pressure data collected by the acquisition module indicates that the air outlet of the heat dissipation duct is smooth. The battery management system can control the fan to continue working or stop working. If the fan continues to work, the battery management system can control the fan to reduce the speed or maintain the current speed.

[0050] In order to achieve rapid snow melting, in some embodiments, the heating module may include at least one heating tube, which is arranged on a dust-proof component near the air duct opening; the battery management system controls the heating module to perform a heating operation in the following manner: controlling at least part of the heating tube to work so that the heat generated by the heating tube melts the snow at the air duct opening.

[0051] The above embodiments do not limit the dustproof components, and for example, they may include one or more of a dustproof cover, a dustproof net, and a dustproof strip.

[0052] The above embodiment does not limit the number of heating tubes, which can be one or more, for example. The above embodiment does not limit the installation method of the heating tubes. As an example, the air duct opening can be provided with a dust cover (or a dust barrier strip), and some or all of the heating tubes can be provided on the mesh opening (or a dust barrier strip) of the dust cover. For example, the heating tubes can be evenly or unevenly arranged at the air duct opening. In this way, the heating module can be quickly deployed with the help of existing hardware facilities, reducing complexity and cost.

[0053] To further increase the snow melting speed, in some embodiments, when the temperature data is within a second temperature range and the humidity data is within a second humidity range, the battery management system can also control the fan speed to be greater than a preset speed to clear the snow from the air duct opening until the heat dissipation duct is unobstructed. In this way, the fan and heating module can be controlled to operate simultaneously, and the wind power can act as a sweeping effect, thereby increasing the snow melting speed.

[0054] To improve snowmelt removal efficiency, in some embodiments, the airflow from the fan can be heated before clearing snow from the duct opening. To heat the airflow from the fan, a heating element can be installed in the airflow path. In some embodiments, the heating element can include one or more of a resistance wire, an electric heating film, a PTC ceramic heating element, and an electric heating pipe, located on the inner wall of the duct or at the duct opening. PTC stands for Positive Temperature Coefficient. For example, a resistance wire can be wrapped around or embedded in the duct wall near the fan outlet. When energized, the resistance wire heats the passing airflow, thereby clearing snow from the duct opening with hot air. Alternatively, multiple electric heating pipes can be installed throughout the airflow path. The airflow is rapidly heated as it passes between these heating surfaces, thereby increasing the outlet air temperature. The electric heating pipes can be bolted to the duct structure frame for easy maintenance and replacement. Alternatively, a separate heating chamber can be provided. For example, the heating chamber can be located between the fan and the duct. The airflow is then heated by multiple heating elements within the heating chamber as it passes through it, and the heated airflow is then directed toward the duct opening.

[0055] In some embodiments, the fan and the heating module can be controlled to work at intervals. For example, the battery management system can also control the heating module to work first, and then control the fan to work after the heating module has worked for a period of time, thereby avoiding the situation where the fan cools down the heating module when working, resulting in lower heating efficiency.

[0056] See also Figure 6a and Figure 6b , Figure 6a This is a schematic diagram of snow removal of an energy storage system provided in an embodiment of the present application. Figure 6b This is a schematic diagram of snow removal of another energy storage system provided in an embodiment of the present application. Figure 6a In the embodiment, the heat dissipation duct and the fan are arranged on the side of the energy storage system, and the duct opening is parallel to the horizontal plane. Figure 6b In the embodiment, the heat dissipation duct and the fan are arranged on the top of the energy storage system, and the duct opening is, for example, facing upward or tilted upward.

[0057] For example, Figure 6a and Figure 6b As shown, for example, in a specific application scenario, assume that snow accumulates in the cooling duct of a heat sink in an energy storage system. After the heat sink is activated, the wind pressure data collected by the acquisition module indicates that the cooling duct is not flowing smoothly. The acquisition module then compares the temperature and humidity data with the set temperature and humidity ranges. If the temperature data is within a second temperature range and the humidity data is within a second humidity range, the battery management system controls the heating tube to start operating. For example, the battery management system sends a control signal to the power supply of the heating tube to connect the power supply of the heating tube to the energy storage battery system (e.g., the battery compartment) so that the heating tube can draw power. The battery management system can also control the fan to increase its speed to clear the snow. The heat generated by the heating tube melts the snow, and combined with the wind from the fan, assuming that the air duct opening is clear after the heating tube has been operating for less than the first time, the acquisition module determines that the cooling duct is flowing smoothly based on the detected wind pressure data, and the battery management system controls the heating tube to stop operating. For example, the battery management system can disconnect the power supply of the heating tube from the energy storage battery system. The battery management system can control the fan to continue working or stop working. When the fan continues to work, the battery management system can control the fan to reduce the speed or maintain the current speed.

[0058] In order to deal with icing, in some embodiments, the de-icing module may include a driver, and the heat dissipation device may further include at least one baffle near the air duct opening; the battery management system controls the de-icing module to perform the de-icing operation in the following manner: a de-icing instruction is sent to the driver, and the driver drives at least part of the baffle to move after receiving the de-icing instruction to clear the ice on the corresponding baffle until the air outlet of the heat dissipation duct is unobstructed. Thus, when icing may occur in the heat dissipation device, the heating module can be controlled to continue heating to melt the ice at the air duct opening. In addition, the baffle can be driven to move by the driver to clear the ice on the baffle. In the above embodiment, the driver is connected to the baffle and can drive the baffle to open and close. In addition, the baffle can be driven to vibrate to achieve the purpose of removing ice on the louvers.

[0059] In order to quickly clear the ice, in some embodiments, the shielding plate can adopt louvers, and multiple louvers are evenly arranged at the air duct opening, and the rotation axis of the louvers is parallel to the plane where the air duct opening is located. In the above embodiment, the shielding plate adopts a louver structure, and multiple louvers are evenly arranged along the air duct opening, and their rotation axis is parallel to the plane where the air duct opening is located. Each louver can swing around its rotation axis under the control of the driver to achieve movement forms such as opening, closing or vibration. When ice appears at the air duct opening, the battery management system can control the heating module to heat the air duct opening to melt the ice, and at the same time send a de-icing instruction to the driver. The driver drives the louvers to perform periodic swings or high-frequency vibrations to destroy and throw off the ice on its surface and in the gaps. Through this method of coupling rotational impact and thermal energy, not only the de-icing efficiency is improved, but also the long-term obstruction of ice to the patency of the air duct is reduced. Among them, the louver structure itself has strong mechanical stability, suitable for withstanding repeated impact forces during the rotation process, with a simple structure and easy processing and maintenance; the rotational vibration motion has a high kinetic energy density, which can effectively break the adhesion between the ice and the louver surface, thereby improving the de-icing effect; thirdly, the coordinated action of multiple louvers can achieve full coverage of the air duct openings, reducing de-icing blind spots.

[0060] In order to improve the ice-breaking effect, in some embodiments, the de-icing module may further include a guide rail and a push rod near the air duct opening, and the driver is further used to drive the push rod to move along the guide rail after receiving the de-icing instruction to clear the ice on the plane where the air duct opening is located. In the above embodiment, in order to further improve the ice-breaking efficiency, the de-icing module is provided with a guide rail and a push rod structure close to the air duct opening. When the battery management system sends a de-icing instruction, the driver drives the push rod to move along the guide rail (for example, reciprocating sliding), and the push rod contacts the plane where the air duct opening is located, and directly breaks or peels off the ice attached to the surface of the air duct opening by a strong push. The push rod can adopt a metal rod-like structure or a plate-like structure with a scraping edge, and its movement path is precisely limited by a fixed guide rail to ensure that its cleaning path covers the entire air duct opening area. First, compared with the method that relies on thermal melting, the mechanical push rod has the ability to physically break ice instantly and can effectively deal with thicker or frozen ice layers; second, the setting of the guide rail makes the push rod's movement path stable and highly repeatable, and not easy to deflect, which is suitable for standardized batch deployment of air duct structures; third, the push rod has a simple structure, fast drive response, easy maintenance, and strong adaptability. It can form a synergistic effect with other de-icing mechanisms (such as heating modules and baffles) to improve overall cleaning efficiency; finally, this mechanical ice-breaking mechanism can play a key role in scenarios where power supply is limited or temperature is extremely low and thermal melting effect is limited, providing reliable de-icing protection for the energy storage system and improving the system's operating safety and stability under extreme climatic conditions.

[0061] See also Figure 7a , Figure 7a This is a schematic diagram of deicing of an energy storage system provided in an embodiment of the present application. Figure 7a In the embodiment, the heat dissipation duct and the fan are arranged on the side of the energy storage system, and the duct opening is parallel or approximately parallel to the horizontal plane.

[0062] For example, Figure 7aAs shown in the figure, in a specific application scenario, assume that the cooling duct of the heat sink of the energy storage system is iced. The heat sink is activated, and the wind pressure data collected by the acquisition module indicates that the cooling duct is not flowing smoothly. The temperature and humidity data are then compared with the set temperature and humidity ranges. If the temperature data is within the second temperature range and the humidity data is within the second humidity range, the battery management system controls the heating tube to start operating and controls the fan to increase its speed. The heat generated by the heating tube melts the snow, and the wind from the fan blows away the snow. If the air duct opening is still not clear after the heating tube has operated for the first time, the battery management system controls the heating tube and fan to continue operating, with the heating tube continuing to heat and melt the ice, and the fan continuing to blow away the ice. Furthermore, the battery management system can also issue operating instructions (e.g., de-icing instructions) to the driver, which drives the louvers to open, close, and vibrate to remove ice from the louvers. Furthermore, after receiving the de-icing instructions, the driver can also drive the push rod to translate left and right along the guide rails on the upper and lower sides of the air duct opening to achieve strong de-icing. When the ice is reduced (or eliminated) to the point where the wind pressure sensor detects a clear cooling duct, the de-icing process is complete and the battery management system stops the heating pipes and driver. The battery management system can also control the fan to continue operating or stop. If the fan continues operating, the battery management system can control the fan to reduce or maintain its current speed.

[0063] The above embodiment does not limit the direction of the air duct opening. The direction of the air duct opening can be parallel to the horizontal plane (or the ground), or the direction of the air duct opening can be upward (or toward the sky) or tilted upward. In the case where the air duct opening is facing upward or tilted upward, the ice at the air duct opening may be thicker and difficult to clean. In some embodiments, the baffle can be an opening and closing cover plate, and the rotation axes of the two opening and closing cover plates are respectively close to the opposite sides of the air duct opening, and the rotation axes of the opening and closing cover plates are parallel to the plane where the air duct opening is located. In the above embodiment, in order to adapt to the special structural layout of the air duct opening facing upward or tilted upward, the baffle can be designed as an opening and closing cover plate structure, and the two cover plates are respectively arranged on the opposite sides of the air duct opening, and the rotation axes are parallel to the plane where the air duct opening is located. It can rotate around the axis under the action of the driver to realize the opening and closing of the cover plate. When ice is detected at the air duct opening and the heating module fails to restore ventilation after prolonged operation, the battery management system sends a de-icing command to the de-icing module. The driver then drives the opening and closing cover from the closed state to the open state. The shear force generated by the rotation breaks up the ice adhering to the cover or the edge of the air duct. The opening and closing motion loosens and dislodges the ice, restoring the air duct opening to a clear state. This structure combines the two ice-breaking mechanisms of rotational shear and self-weight shedding, making it particularly suitable for conditions where the ice is thick or adhered to a large area. First, the structure is simple and compact, making it easy to integrate at locations with limited space at the edge of the air duct opening; second, the rotational motion creates a tearing force on the ice, which has a higher local destruction efficiency than linear thrust and can effectively cut off the interface between the ice layer and the structural surface; third, the opening and closing cover can be used as a dust-proof or rain-proof component in a non-icing state, and is multifunctional; fourth, the structure is suitable for situations where the top air duct opening (facing the sky or tilted upward) and the air duct opening is parallel to the horizontal plane (or the ground). Especially in the case of the air duct opening (facing the sky or tilted upward), it can still achieve active cleaning of the ice layer in the direction of gravity without relying on complex three-dimensional structures, effectively ensuring the patency of the air duct and the heat dissipation efficiency of the energy storage system under extreme weather conditions.

[0064] See also Figure 7b , Figure 7b This is a schematic diagram of deicing of another energy storage system provided in an embodiment of the present application. Figure 7b In the embodiment, the heat dissipation duct and the fan are arranged on the top of the energy storage system, and the duct opening is, for example, facing upward or tilted upward.

[0065] For example, Figure 7bAs shown in the figure, in a specific application scenario, assume that the cooling duct of the heat sink of the energy storage system is iced. The heat sink is activated, and the wind pressure data collected by the acquisition module indicates that the cooling duct is not flowing smoothly. The temperature and humidity data are then compared with the set temperature and humidity ranges. If the temperature data is within the second temperature range and the humidity data is within the second humidity range, the battery management system controls the heating tube to start operating and controls the fan to increase its speed. The heat generated by the heating tube melts the snow, and the wind from the fan blows away the snow. If the air duct opening does not return to normal after the heating tube has been operating for less than the first time, the battery management system controls the heating tube and fan to continue operating, with the heating tube continuing to heat and melt the ice, and the fan continuing to blow away the ice. Furthermore, the battery management system can also issue operating instructions (e.g., de-icing instructions) to the driver, which drives the opening and closing cover to open, close, and vibrate, thereby removing ice from the opening and closing cover. Furthermore, upon receiving the de-icing instruction, the driver can also drive a push rod (not shown) to translate left and right along the guide rails (not shown) on the upper and lower sides of the air duct opening, achieving powerful de-icing. When the ice is reduced (or eliminated) to the point where the wind pressure data detected by the wind pressure sensor indicates that the cooling air duct is unobstructed, the de-icing work is completed, the battery management system controls the heating pipe and the driver to stop working, and the fan can continue to work or stop working.

[0066] See also Figure 8 , Figure 8 This is a flow chart of a control method for an energy storage system provided in an embodiment of the present application.

[0067] like Figure 8 As shown, an embodiment of the present application also provides a control method for an energy storage system, wherein the energy storage system includes a heat dissipation device and a cleaning device, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a deicing module, and the fan, the heating module and the deicing module are arranged near the duct opening of the heat dissipation duct; the method includes steps 101 to S102.

[0068] Step S101: acquiring wind pressure data, temperature data, and humidity data corresponding to the heat dissipation duct through the acquisition module;

[0069] Step S102: When the wind pressure data indicates that the air outlet of the heat dissipation air duct is not smooth: when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, the fan is controlled to perform a dust removal operation; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, the heating module is controlled to perform a heating operation; if the working time of the heating module exceeds the first time length, the de-icing module is controlled to perform a de-icing operation.

[0070] In some embodiments, the control method may be executed on a controller, which may be independently configured, or the controller may be integrated into a battery management system, a local controller, or an energy storage converter.

[0071] like Figure 3 As shown, an embodiment of the present application also provides a cleaning device, which is applied to an energy storage system, wherein the energy storage system includes a heat dissipation device, a cleaning device and a battery management system, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a de-icing module, and the fan, the heating module and the de-icing module are arranged near the duct opening of the heat dissipation duct; the collection module is used to obtain the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct through the collection module; when the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to control the fan to perform a dust removal operation when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, control the de-icing module to perform a de-icing operation.

[0072] See also Figure 9 , Figure 9 This is a structural block diagram of a battery management system provided in an embodiment of the present application.

[0073] like Figure 9 As shown, an embodiment of the present application also provides a battery management system, which is applied to an energy storage system, wherein the energy storage system includes a heat dissipation device, a cleaning device and a battery management system, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a de-icing module, and the fan, the heating module and the de-icing module are arranged near the duct opening of the heat dissipation duct; the collection module is used to obtain the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct through the collection module; when the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to control the fan to perform a dust removal operation when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, control the de-icing module to perform a de-icing operation.

[0074] See also Figure 10 , Figure 10 This is a structural block diagram of a controller provided in an embodiment of the present application.

[0075] An embodiment of the present application further provides a controller, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements any of the above methods when executing the computer program.

[0076] The controller may include: a memory 110, a processor 120, and a communication interface 130. The memory 110, the processor 120, and the communication interface 130 are connected via an internal connection path.

[0077] The memory 110 is used to store computer programs. In some implementations, the computer programs may include codes for implementing the methods of the embodiments of the present application.

[0078] The processor 120 is configured to execute the computer program stored in the memory 110 to control the communication interface 130 to receive input data and information and output data such as operation results. In some implementations, when the solutions of the embodiments of the present application are implemented through software or firmware, the computer program for implementing the solutions of the embodiments of the present application may be stored in the processor 120 and executed by the processor 120.

[0079] The memory 110 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM). It should be noted that the memory 110 described herein is intended to include, but is not limited to, any memory of these and other suitable types. As an example, the memory 110 includes a random access memory (RAM), a cache memory and a read-only memory (ROM). Among them, the memory 110 stores a computer program, and the computer program can be executed by the processor 120 so that the processor 120 implements the steps of any of the above methods.

[0080] The processor 120 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor, or the processor 120 may be any conventional processor.

[0081] During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the processor 120 or by instructions in the form of software. The method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware processor, or can be executed by a combination of hardware and software modules in the processor 120. The software module can be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 110, and the processor 120 reads the information in the memory 110 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

[0082] In some implementations, in addition to the hardware units described above, the controller may also include software modules, where the software modules may be, for example, an operating system, a basic input and output system (BIOS), application software, etc.

[0083] The operating system manages one or more of the controller's hardware and software resources and is the controller's core and cornerstone. The operating system handles basic tasks such as managing and allocating memory, prioritizing system resource supply and demand, controlling input and output devices, operating the network, and managing the file system. To facilitate user operation, most operating systems provide an interface for user interaction with the system.

[0084] The BIOS is used to run hardware initialization during the power-on boot phase and provide runtime services for the operating system and applications. In some implementations, the BIOS can also monitor and display the processor temperature and execute functions such as adjusting temperature protection strategies.

[0085] Application software, also known as an application program, is software written for a specific user purpose. It is a major category of computer software. For example, application software might be a program used for power control, temperature management, and other purposes.

[0086] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, any of the above methods is implemented.

[0087] An embodiment of the present application further provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, implements any of the above methods.

[0088] The computer program product may be a portable compact disc read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the computer program product of the present application is not limited thereto, and the computer program product may be any combination of one or more computer-readable media.

[0089] An embodiment of the present application also provides a chip, which is used to execute any of the above methods.

[0090] It should be understood that the specific examples in this application are only intended to help those skilled in the art better understand the implementation methods of this application, rather than to limit the scope of protection of this application.

[0091] It can be understood that in various implementations of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the present application.

[0092] It can be understood that the various embodiments described in this application can be implemented individually or in combination, and this application is not limited to this.

[0093] Unless otherwise indicated, all technical and scientific terms used in this application have the same meaning as those generally understood by those skilled in the art in the technical field of this application. The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit the scope of this application. The term "one or more" used in this application includes any and all combinations of one or more related listed items. The singular forms "a", "above", and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0094] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0095] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described embodiments may refer to the corresponding processes in other embodiments and will not be repeated here.

[0096] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0097] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the objectives of the technical solutions of this application.

[0098] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0099] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0100] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An energy storage system, characterized in that: The energy storage system includes a heat dissipation device, a cleaning device and a battery management system. The heat dissipation device includes a heat dissipation duct and a fan. The cleaning device includes a collection module, a heating module and a deicing module. The fan, the heating module and the deicing module are arranged near the duct opening of the heat dissipation duct. The acquisition module is used to acquire the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct; When the wind pressure data indicates that the heat dissipation air duct is blocked, the battery management system is configured to perform the following processing: When the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, controlling the fan to perform a dust removal operation; Alternatively, when the temperature data is within the second temperature value range and the humidity data is within the second humidity value range, the heating module is controlled to perform a heating operation; if the working time of the heating module exceeds the first time length, the deicing module is controlled to perform a deicing operation.

2. The energy storage system according to claim 1, characterized in that The battery management system controls the fan to perform dust removal operation in the following manner: controlling the rotation speed of the fan to be greater than a preset rotation speed to blow away the dust at the air duct opening until the heat dissipation air duct is unobstructed.

3. The energy storage system according to claim 1, characterized in that The heating module includes at least one heating tube, and the heating tube is arranged on the dust-proof component close to the air duct opening; The battery management system controls the heating module to perform a heating operation in the following manner: controlling at least a portion of the heating tubes to operate so that the heat generated by the heating tubes melts the snow at the air duct opening.

4. The energy storage system according to claim 1, characterized in that The deicing module includes a driver, and the heat dissipation device further includes at least one shielding plate near the air duct opening; The battery management system controls the de-icing module to perform the de-icing operation in the following manner: a de-icing instruction is sent to the driver, and the driver drives at least part of the baffle to move after receiving the de-icing instruction to clear the ice on the corresponding baffle until the heat dissipation air duct is unobstructed.

5. The energy storage system according to claim 4, characterized in that: The shielding plate adopts louvers, and a plurality of louvers are evenly arranged at the air duct opening, and the rotation axes of the louvers are parallel to the plane where the air duct opening is located.

6. The energy storage system according to claim 4, characterized in that: The shielding plate adopts an opening and closing cover plate, and the rotation axes of the two opening and closing cover plates are respectively close to the opposite sides of the air duct opening, and the rotation axes of the opening and closing cover plates are parallel to the plane where the air duct opening is located.

7. The energy storage system according to claim 4, characterized in that: The deicing module also includes a guide rail and a push rod near the air duct opening. The driver is also used to drive the push rod to move along the guide rail after receiving the deicing instruction to clear ice cubes on the plane where the air duct opening is located.

8. A control method for an energy storage system, characterized in that: The energy storage system includes a heat dissipation device and a cleaning device, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a deicing module, and the fan, the heating module and the deicing module are arranged near the duct opening of the heat dissipation duct; the method includes: The acquisition module acquires wind pressure data, temperature data and humidity data corresponding to the heat dissipation duct; When the wind pressure data indicates that the heat dissipation air duct is blocked: When the temperature data is within a first temperature value range and the humidity data is within a first humidity value range, controlling the fan to perform a dust removal operation; Alternatively, when the temperature data is within the second temperature value range and the humidity data is within the second humidity value range, the heating module is controlled to perform a heating operation; if the working time of the heating module exceeds the first time length, the deicing module is controlled to perform a deicing operation.

9. A cleaning device, characterized in that: Applied to an energy storage system, the energy storage system includes a heat dissipation device, a cleaning device and a battery management system, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a deicing module, and the fan, the heating module and the deicing module are arranged near the duct opening of the heat dissipation duct; The acquisition module is used to acquire the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct through the acquisition module; When the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to control the fan to perform a dust removal operation when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, control the de-icing module to perform a de-icing operation.

10. A battery management system, characterized in that: Applied to an energy storage system, the energy storage system includes a heat dissipation device, a cleaning device and a battery management system, the heat dissipation device includes a heat dissipation duct and a fan, the cleaning device includes a collection module, a heating module and a deicing module, and the fan, the heating module and the deicing module are arranged near the duct opening of the heat dissipation duct; The acquisition module is used to acquire the corresponding wind pressure data, temperature data and humidity data of the heat dissipation duct through the acquisition module; When the wind pressure data indicates that the air outlet of the heat dissipation duct is not smooth, the battery management system is used to control the fan to perform a dust removal operation when the temperature data is within a first temperature value range and the humidity data is within a first humidity value range; or, when the temperature data is within a second temperature value range and the humidity data is within a second humidity value range, control the heating module to perform a heating operation; if the working time of the heating module exceeds the first time length, control the de-icing module to perform a de-icing operation.

Images